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Edition:Final Report (October 2022 - May 2025)
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Abstract:The Construction Manager/General Contractor (CM/GC) project delivery method is gaining widespread adoption in the transportation sector due to its ability to integrate construction expertise early in the project lifecycle. This report serves as a playbook for CM/GC adoption in transportation projects, specifically tailored for the Georgia Department of Transportation (GDOT). The study examines CM/GC best practices from multiple Department of Transportation (DOT) agencies across the United States, evaluates their effectiveness, and identifies opportunities for GDOT to enhance its implementation strategy. The research is conducted through a comprehensive methodology that includes an extensive literature review, case study analysis, and a Delphi survey to consolidate expert opinions on best practices. Case studies from Utah, California, Colorado, Oregon, Minnesota, Tennessee, and Michigan highlight key strategies in CM/GC project identification, procurement, preconstruction services, and cost negotiation mechanisms. A comparative analysis between GDOT’s existing framework and those of other DOTs reveals areas for improvement, including refinements in selection and procurement approaches, risk- sharing models, constructability reviews, and execution efficiencies. Findings indicate that early contractor involvement, progressive Guaranteed Maximum Price (GMP) structures, risk-based pricing models, and digital collaboration tools significantly enhance project delivery outcomes. The report concludes with actionable policy recommendations for GDOT to optimize CM/GC implementation, including enhanced procurement evaluation criteria, structured contractor collaboration processes, and integration of emerging digital technologies. These recommendations aim to streamline project execution, mitigate risks, and improve cost control, ensuring that GDOT achieves greater efficiency, transparency, and innovation in its transportation infrastructure projects.
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